Do you have to disconnect both battery terminal to reset computer?
The safest way to perform this is to remove both battery cables from the battery, isolate the cables and leave them disconnected overnight. 4) Connect the positive and negative battery cables together for approximately 5 minutes. This will drain all of the capacitors in the computers and forces them to cold reboot.
How do you remove a positive terminal cable from a computer?
Remove the positive terminal cable from the battery using your pliers or wrench. Go to your fuse box in your car, and look at the diagram. Select the fuse that is labeled “ECM” and remove this fuse. Keep the car disconnected like this for two to three minutes to clear the computer’s memory.
How to reset a computer by touching the battery cables together?
Does touching the battery cables together to reset computer? 1 Clean any corrosion off of the battery and terminals with a can of spray-on battery cleaner. 2 Hold the positive and negative cable ends together so they’re touching each other but not the battery. 3 Wait five minutes for the diagnostic information to be erased.
How long should battery be disconnected to reset ECU?
1 Open up the hood. 2 Remove the positive terminal cable from the battery using your pliers or wrench. 3 Go to your fuse box in your car, and look at the diagram. Select the fuse that is labeled “ECM” and remove this fuse. 4 Keep the car disconnected like this for two to three minutes to clear the computer’s memory.
What happens when you reset your car computer?
The reset should restore the ECM to its default settings and clear all car computer-related problems in your vehicles, such as computer codes or illuminated check engine light. You can use two methods for resetting your car’s computer. The first option is to turn off the car’s battery to break the circuit and erase all memory.